| A | B |
|---|
| states of matter | solid, liquid, gas, and plasma |
| macroscopic | what you may see with the unaided eye |
| microscopic | what you might see if you could see individual atoms |
| liquid | fixed volume, not fixed shape |
| gas | no fixed volume, no fixed shape |
| solid | fixed volume, fixed shape |
| volume | the space an object occupies |
| weight | force produced by gravity acting upon the mass of a substance. |
| unit | a quantity adopted as a standard of measurement |
| physical property | a property that can be determined without changing the nature of the substance |
| mass | the amount of matter contained in the object |
| pure substance | a sample of matter, either a single element or a single compound, that has definite chemical and physical properties |
| dependent variable | a factor that is being measured by the experimenter. |
| Qualitative observations | use non-numberical information (no numbers) |
| independent variable | what is changed in an experiment |
| quantitative observation | numerical information |
